Home / 15,371.25-21,213.54-9,084.84

Finding the Fourth Proportional to 15,371.25, 21,213.54 and 9,084.84

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Solution

The fourth proportional to 15,371.25, 21,213.54 and 9,084.84 is: 12,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371.25 : 21,213.54 = 9,084.84 : x
  2. Step 2: Convert to fraction form
    15,371.25/21,213.54 = 9,084.84/x
  3. Step 3: Cross multiply
    15,371.25x = 21,213.54 × 9,084.84
  4. Step 4: Simplify right side
    15,371.25x = 192,721,616.73
  5. Step 5: Solve for x
    x = 192,721,616.73/15,371.25
  6. Step 6: Final answer
    x = 12,537.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.